Evaluation of the Beckman creatinine analyzer.

Abstract:

:We compared results obtained with the Beckman Creatinine Analyzer (Beckman Instruments, Inc.) to those with the GEMSAEC Centrifugal Analyzer (Electro-Nucleonics, Inc.) and with a manual method for determination of creatinine in serum and urine. Linearity, stability, recovery, and precision were evaluated. Interference from bilirubin, protein, lipemia, uric acid, and hemolysis is negligible, but acetone and acetoacetate can interfere.

journal_name

Clin Chem

journal_title

Clinical chemistry

authors

Hicks JM,Iosefsohn M,Lewis SA

subject

Has Abstract

pub_date

1979-06-01 00:00:00

pages

1005-8

issue

6

eissn

0009-9147

issn

1530-8561

journal_volume

25

pub_type

杂志文章
  • Profiling plasma microRNA in nasopharyngeal carcinoma with deep sequencing.

    abstract:BACKGROUND:The goal of this study was to establish a plasma microRNA profile by use of next-generation sequencing that could aid in assessment of patient prognosis in nasopharyngeal carcinoma (NPC). METHODS:Two panels of NPC patients and healthy controls (HCs) were recruited for this study. We used deep sequencing to ...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:10.1373/clinchem.2013.214213

    authors: Wang HY,Yan LX,Shao Q,Fu S,Zhang ZC,Ye W,Zeng YX,Shao JY

    更新日期:2014-05-01 00:00:00

  • Soluble CD146 Is a Novel Marker of Systemic Congestion in Heart Failure Patients: An Experimental Mechanistic and Transcardiac Clinical Study.

    abstract:BACKGROUND:Soluble CD146 (sCD146), is an endothelial marker with similar diagnostic power as natriuretic peptides in decompensated heart failure (HF). While natriuretic peptides are released by the failing heart, sCD146 may be released by veins in response to stretch induced by systemic congestion in HF. This study inv...

    journal_title:Clinical chemistry

    pub_type: 临床试验,杂志文章

    doi:10.1373/clinchem.2016.260471

    authors: Arrigo M,Truong QA,Onat D,Szymonifka J,Gayat E,Tolppanen H,Sadoune M,Demmer RT,Wong KY,Launay JM,Samuel JL,Cohen-Solal A,Januzzi JL Jr,Singh JP,Colombo PC,Mebazaa A

    更新日期:2017-01-01 00:00:00

  • A new chromogenic amylase method compared with two established methods.

    abstract::We tested a new amylase reagent involving chromogenic substrates (Pantrak, Calbiochem-Behring) for precision, dynamic range, and susceptibility to potential interferences. Two p-nitrophenyl-alpha-maltaosides are used as substrates, which amylase cleaves to shorter-chain p-nitrophenyl maltaosides, the latter then yield...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Fenton J,Foery R,Piatt L,Geschwindt K

    更新日期:1982-04-01 00:00:00

  • Association between the UGT1A1 TA-repeat polymorphism and bilirubin concentration in patients with intermittent claudication: results from the CAVASIC study.

    abstract:BACKGROUND:Bilirubin has antioxidative and cytoprotective properties. Low plasma concentrations of bilirubin are reportedly associated with the development of coronary and cerebrovascular disease, and bilirubin concentrations are strongly correlated with the enzyme activity of the hepatic uridine diphosphate glucuronos...

    journal_title:Clinical chemistry

    pub_type: 临床试验,杂志文章

    doi:10.1373/clinchem.2007.102046

    authors: Rantner B,Kollerits B,Anderwald-Stadler M,Klein-Weigel P,Gruber I,Gehringer A,Haak M,Schnapka-Köpf M,Fraedrich G,Kronenberg F

    更新日期:2008-05-01 00:00:00

  • Description of a computer program to assess cancer antigen 15.3, carcinoembryonic antigen, and tissue polypeptide antigen information during monitoring of metastatic breast cancer.

    abstract::It is time-consuming to process and compare the clinical and marker information registered during monitoring of breast cancer patients. To facilitate the assessment, we developed a computer program for interpreting consecutive measurements. The intraindividual biological variation, the analytical precision profile, th...

    journal_title:Clinical chemistry

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:

    authors: Sölétormos G,Schiøler V

    更新日期:2000-08-01 00:00:00

  • Lp-PLA2: a new kid on the block.

    abstract:BACKGROUND:Atherosclerosis is a systemic disease with focal rupture of vulnerable plaque responsible for major clinical events. Several population-based studies indicate an association between lipoprotein-associated phospholipase A2 (Lp-PLA2) and cardiovascular events. Lp-PLA2 is emerging as a biomarker that may be a p...

    journal_title:Clinical chemistry

    pub_type: 杂志文章,评审

    doi:10.1373/clinchem.2006.070672

    authors: Zalewski A,Nelson JJ,Hegg L,Macphee C

    更新日期:2006-09-01 00:00:00

  • Assay for erythrocyte uroporphyrinogen I synthase activity, with porphobilinogen as substrate.

    abstract::We describe a convenient, economical procedure for measuring uroporphyrinogen I synthase (EC 4.3 1.8) activity in erythrocytes, the results of which can be used to diagnose acute intermittent porphyria, in either its latent or acute stage. By limiting the test reaction sequence to the conversion of porphobilinogen to ...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Ford RE,Ou CN,Ellefson RD

    更新日期:1980-07-01 00:00:00

  • Microplate measurement of urinary albumin and creatinine.

    abstract::We describe microplate methods for measurement of human urinary albumin (HUA) by competitive enzyme-linked immunosorbant assay (ELISA) and creatinine with a modified commercial enzymatic kit. Incorporation of substrate mixing into the competitive ELISA changes the dynamic absorbance-concentration response, greatly sim...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Magnotti RA Jr,Stephens GW,Rogers RK,Pesce AJ

    更新日期:1989-07-01 00:00:00

  • Trace metal analysis by laser-enhanced ionization in flames.

    abstract::We review atomic flame spectrometry of metals based on the selective laser-enhancement of the rate of atomic ionization. A discussion of basic principles, prior literature, and instrumentation is followed by an overview of analytical figures of merit for the technique, and a look at its present status and areas for fu...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Travis JC,Turk GC,DeVoe JR

    更新日期:1983-09-01 00:00:00

  • Urinary excretion rates of 15 free steroids: potential utility in differential diagnosis of Cushing's syndrome.

    abstract::To evaluate their potential usefulness in the differential diagnosis of Cushing's syndrome, we estimated the urinary excretion rates of the following non-metabolized, unbound steroid hormones: pregnenolone, progesterone, 17-OH-pregnenolone, 17-OH-progesterone, dehydroepiandrosterone (DHEA), androstenedione, testostero...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Schöneshöfer M,Weber B,Oelkers W,Nahoul K,Mantero F

    更新日期:1986-01-01 00:00:00

  • Fetuin-A is an independent predictor of death after ST-elevation myocardial infarction.

    abstract:BACKGROUND:Fetuin-A inhibits inflammation and has a protective effect against myocardial ischemia. Its deficiency has been found to be associated with cardiovascular death in patients with end-stage renal failure disease. We investigated the association between plasma fetuin-A and clinical outcome after ST-elevation ac...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:10.1373/clinchem.2006.084947

    authors: Lim P,Collet JP,Moutereau S,Guigui N,Mitchell-Heggs L,Loric S,Bernard M,Benhamed S,Montalescot G,Randé JL,Guéret P

    更新日期:2007-10-01 00:00:00

  • Energy-dispersive x-ray fluorescence spectroscopy and inductively coupled plasma emission spectrometry evaluated for multielement analysis in complex biological matrices.

    abstract::Energy-dispersive x-ray spectroscopy and inductively coupled plasma emission spectrometry were evaluated as methods for routine multielement analysis of biological material. Standard samples included Standard Reference Materials (National Bureau of Standards), compounded mixtures, and supplements that provided a wide ...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Irons RD,Schenk EA,Giauque RD

    更新日期:1976-12-01 00:00:00

  • Single-strand conformation polymorphism analysis to detect p53 mutations: characterization and development of controls.

    abstract::Single-strand conformation polymorphism (SSCP) analysis is widely used to prescreen mutations in p53 gene. However, standardization of SSCP to detect p53 mutations has rarely been pursued so far. We have developed complete conditions for a temperature-controlled nonradioactive SSCP for mutation detection in amplified ...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Welsh JA,Castrén K,Vähäkangas KH

    更新日期:1997-12-01 00:00:00

  • Optimized liquid-chromatographic method for fluorometric determination of urinary delta-aminolevulinic acid in workers exposed to lead.

    abstract::We developed a fluorometric method for determining delta-aminolevulinic acid (ALA) in urine of lead workers. A high-performance liquid chromatograph (HPLC) equipped with a fluorescence HPLC monitor is used. The detection limit for aqueous ALA is 20 micrograms/L (15 pmol of ALA in the 100-microL sample). The working li...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Tomokuni K,Ichiba M,Hirai Y,Hasegawa T

    更新日期:1987-09-01 00:00:00

  • Measurement of the complex between prostate-specific antigen and alpha1-protease inhibitor in serum.

    abstract:BACKGROUND:Prostate-specific antigen (PSA) occurs in serum both free and in complex with protease inhibitors. The complex with alpha1-antichymotrypsin (ACT) is the major form in serum, and the proportion of PSA-ACT is higher in prostate cancer (PCa) than in benign prostatic hyperplasia (BPH). PSA also forms a complex w...

    journal_title:Clinical chemistry

    pub_type: 临床试验,杂志文章

    doi:

    authors: Zhang WM,Finne P,Leinonen J,Vesalainen S,Nordling S,Stenman UH

    更新日期:1999-06-01 00:00:00

  • "Ultrasensitive" silver stains: their use exemplified in the study of normal human cerebrospinal fluid proteins separated by two-dimensional electrophoresis.

    abstract::We have developed a series of photochemical silver stains that are more than 100 times as sensitive as the Coomassie Blue stains. These stains facilitate the quantitative estimation of proteins in two-dimensional gel patterns. Recently, we discovered that by using light (photodevelopment) to catalyze the reduction of ...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Merril CR,Harrington MG

    更新日期:1984-12-01 00:00:00

  • Automated fluorometric analysis of galactose in blood.

    abstract::In galactosemia, prevention of mental retardation depends on early recognition of the disorder and institution of dietary restriction of galactose. We describe an automated fluorometric micromethod for galactose in whole blood spotted on filter paper. Galactose is oxidized by galactose oxidase to D-galacto-hexadialdos...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Mason GA,Summer GK,Dutton HH,Schwaner RC Jr

    更新日期:1977-06-01 00:00:00

  • Manual fluorometry of phenylalanine from blood specimens collected on filter paper: a modified procedure.

    abstract::In this manual fluorometric method, blood samples are used that have been impregnated on the filter paper, a convenient collection technique that is widely used to screen newborns for phenylketonuria. The modified procedure, based on the method of McCaman and Robins [J. Lab Clin. Med. 59, 885 (1962)], includes elution...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Wu JT,Wu LH,Ziter FA,Ash KO

    更新日期:1979-03-01 00:00:00

  • Distribution and correlates of C-reactive protein concentrations among adult US women.

    abstract:BACKGROUND:Understanding the distribution of C-reactive protein (CRP) concentration among adult women in the US helps to establish the magnitude of women at increased risk for cardiovascular disease. METHODS:We examined the distribution and correlates of CRP, using data from 2205 women >or=20 years of age from the Nat...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:10.1373/clinchem.2003.027359

    authors: Ford ES,Giles WH,Mokdad AH,Myers GL

    更新日期:2004-03-01 00:00:00

  • Altered profile of seminal plasma microRNAs in the molecular diagnosis of male infertility.

    abstract:BACKGROUND:Although microRNAs (miRNAs) play essential roles in spermatogenesis, little is known about seminal plasma miRNAs in infertile men. We investigated the profile of seminal plasma miRNAs in infertile men to identify miRNAs that are altered in infertility; we then evaluated their diagnostic value. METHODS:Semin...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:10.1373/clinchem.2011.169714

    authors: Wang C,Yang C,Chen X,Yao B,Yang C,Zhu C,Li L,Wang J,Li X,Shao Y,Liu Y,Ji J,Zhang J,Zen K,Zhang CY,Zhang C

    更新日期:2011-12-01 00:00:00

  • Isothermal recombinase polymerase amplification assay applied to the detection of group B streptococci in vaginal/anal samples.

    abstract:BACKGROUND:Group B streptococcal infections are the leading cause of sepsis and meningitis in newborns. A rapid and reliable method for the detection of this pathogen at the time of delivery is needed for the early treatment of neonates. Isothermal amplification techniques such as recombinase polymerase amplification h...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:10.1373/clinchem.2013.213504

    authors: Daher RK,Stewart G,Boissinot M,Bergeron MG

    更新日期:2014-04-01 00:00:00

  • Polymorphisms in the interleukin-1 gene cluster in children and young adults with systemic meningococcemia.

    abstract:BACKGROUND:An association has been described between mortality in children with meningococcal disease and functional polymorphisms in the interleukin-1 (IL1) cluster. We undertook a multicenter study to evaluate associations of these polymorphisms in a Central European population. PATIENTS AND METHODS:The study involv...

    journal_title:Clinical chemistry

    pub_type: 杂志文章,多中心研究

    doi:10.1373/clinchem.2005.058537

    authors: Endler G,Marculescu R,Starkl P,Binder A,Geishofer G,Müller M,Zöhrer B,Resch B,Zenz W,Mannhalter C,Central European Meningococcal Genetic Study Group.

    更新日期:2006-03-01 00:00:00

  • Anaphylaxis in the mouse--a model for using two-dimensional electroimmunodiffusion to study pathological changes in multiple serum proteins simultaneously.

    abstract::Two-dimensional electroimmunodiffusion is rarely used in clinical chemistry, because its potentialities are not yet widely appreciated. Studying mouse anaphylaxis, we observed with this technique certain striking short- and long-term pathologic changes in several important serum antigens, which aptly demonstrate its u...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Quintero S,Crowle AJ

    更新日期:1979-05-01 00:00:00

  • Comparison of LDL cholesterol concentrations by Friedewald calculation and direct measurement in relation to cardiovascular events in 27,331 women.

    abstract:BACKGROUND:National Cholesterol Education Program (NCEP) guidelines recommend development of direct assays for LDL cholesterol (LDL-C) measurement, but it is unclear how these assays compare with Friedewald calculation in predicting cardiovascular disease (CVD). METHODS:In a study of 27 331 healthy women with triglyce...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:10.1373/clinchem.2008.117929

    authors: Mora S,Rifai N,Buring JE,Ridker PM

    更新日期:2009-05-01 00:00:00

  • LOX index, a novel predictive biochemical marker for coronary heart disease and stroke.

    abstract:BACKGROUND:Lectin-like oxidized LDL receptor 1 (LOX-1) is implicated in atherothrombotic diseases. Activation of LOX-1 in humans can be evaluated by use of the LOX index, obtained by multiplying the circulating concentration of LOX-1 ligands containing apolipoprotein B (LAB) times that of the soluble form of LOX-1 (sLO...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:10.1373/clinchem.2009.140707

    authors: Inoue N,Okamura T,Kokubo Y,Fujita Y,Sato Y,Nakanishi M,Yanagida K,Kakino A,Iwamoto S,Watanabe M,Ogura S,Otsui K,Matsuda H,Uchida K,Yoshimoto R,Sawamura T

    更新日期:2010-04-01 00:00:00

  • An unusual case of toluene-induced metabolic acidosis.

    abstract::We used gas chromatography-mass spectrometry to analyze serum specimens from a patient whose metabolic ketoacidosis resulted from sniffing a toluene-containing substance; we also analyzed a sample of the abused substance itself and a serum specimen from a normal subject. The blood samples from the patient showed abnor...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Jone CM,Wu AH

    更新日期:1988-12-01 00:00:00

  • Elimination of glucose interference and improved precision in a continuous-flow analysis for inulin.

    abstract::A modified fermentation procedure based on one described by Homer Smith in his textbook was used to eliminate glucose interference in the automated detrmination of inulin. The manifold of Fjeldbo and Stamey [J. Lab. Clin. Med. 72, 353 (1968)] was modified to enable us to insert the fermentation procedure without sacri...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Torelli JA,Middleton B,Stein RM

    更新日期:1977-07-01 00:00:00

  • High-performance liquid chromatography of 125I-labeled mouse epidermal growth factor radioiodinated by six different methods.

    abstract::Six different procedures for radioiodination of mouse epidermal growth factor (EGF) all resulted in a heterogeneous 125I-labeled EGF preparation, as analyzed by reversed-phase HPLC. EGF preparations that had been iodinated with Chloramine T, lodogen, or lodo-beads were found mainly to consist of oxidized 125I-labeled ...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Kienhuis CB,Heuvel JJ,Ross HA,Foekens JA,Benraad TJ

    更新日期:1992-05-01 00:00:00

  • Monomeric calgranulins measured by SELDI-TOF mass spectrometry and calprotectin measured by ELISA as biomarkers in arthritis.

    abstract:BACKGROUND:SELDI-TOF mass spectrometry (MS) is a high-throughput proteomic approach with potential for identifying novel forms of serum biomarkers of arthritis. METHODS:We used SELDI-TOF MS to analyze serum samples from patients with various forms of inflammatory arthritis. Several protein profiles were collected on d...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:10.1373/clinchem.2007.099549

    authors: de Seny D,Fillet M,Ribbens C,Marée R,Meuwis MA,Lutteri L,Chapelle JP,Wehenkel L,Louis E,Merville MP,Malaise M

    更新日期:2008-06-01 00:00:00

  • Tartrate-resistant acid phosphatase isoform 5b as serum marker for osteoclastic activity.

    abstract:BACKGROUND:Tartrate-resistant acid phosphatase (AcP) 5b is a marker of osteoclastic activity and bone resorption. Immunoassays for serum TRAcP may lack sensitivity and specificity because of the presence of non-bone isoform 5a. The purpose of this study was to isolate the serum isoforms, quantify their disease-related ...

    journal_title:Clinical chemistry

    pub_type: 杂志文章

    doi:

    authors: Janckila AJ,Takahashi K,Sun SZ,Yam LT

    更新日期:2001-01-01 00:00:00